/Engine/Source/Runtime/Core/Public/Misc/CoreDelegates.h
Callback to allow user code to implement a custom implementation for FPlatformProcess::LaunchURL. (Windows Only)
static [TDelegate](API\Runtime\Core\Delegates\TDelegate)< void(const [FString](API\Runtime\Core\Containers\FString) &URL, [FString](API\Runtime\Core\Containers\FString) *Error)> LaunchCustomHandlerForURL;